Word: molecular
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...whereas the batches of atoms created or transmuted by physicists cannot even be seen under the microscope, chemists now synthesize molecules after Nature's pattern in quantities that keep factories humming and salesmen humping. Molecules are groups of atoms which act as chemical units. The vast importance of molecular structure is well illustrated by the case of ozone, which is a modification of oxygen having three atoms in its molecule instead of the ordinary two. In the popular mind "ozone" has long been a synonym for pure and therefore beneficial air. Many a tuberculosis researcher has hoped it would...
...Separation of hemoglobin, blood's red coloring matter, from the blood serum would require 180 years by gravity sedimentation, but may be accomplished in six hours with DuPont's new Svedberg (1 electro-condenser, 2 atom gun, 3 molecular magnet, 4 centrifuge, 5 chemical reducer...
...zero or nearly zero, the positive charge is concentrated at one end, the negative at the other end. The distance between them is a factor in the dipole moment, which is, roughly speaking, a measure of electric leverage. Dr. Cohn measured the charges and the dipole moments by observing molecular behavior under a bombardment of radio waves. If some stimulus discharged the positive tension at one end, the negative charge would redistribute itself, affecting other molecules. If these molecules twitched in response to the charge, their movements would generate a current affecting still other molecules. Thus, like...
Thus the body of science is like a pyramid. The broad base rests on sense impressions. As one proceeds farther & farther from sense impressions, fewer & fewer systems are necessary to explain Nature, since each system explains more. Thus mechanics and heat are merged when heat is revealed as molecular motion. But this is far from the pyramid's base; a hand dipped in hot water feels heat, not motion. The apex of the pyramid, not yet reached, would be a single system containing the terms necessary to describe all phenomena...
...compound, however formed, that contains carbon, since carbon is a notable component of plants and animals. Lately Rockefeller Institute researchers have isolated in the form of crystals a virus which causes a plant disease called tobacco mosaic. The virus seems to consist of a protein molecule with a molecular weight of several million units. In most respects it is not alive; the crystal structure, for example, is typical of inanimate materials such as metal. But when it makes contact with plant tissue, the molecules at once acquire the ability to reproduce themselves-a prime prerequisite of life...